I see. Yes that appears to change the reference point for the transformation, but it still transforms all off-curves. With a script, do you mean creating a custom transform tool? It would be great if there were a preference that is point-type-agnostic transformation as well

:) The transform options did expand with RoboFont 1.2 It really handy to disable components if you want to transform a selection of glyphs, where there is a mix of hard outlines and components glyphs. If this option isn't disabled the component is being transformed twice.